diff --git a/unix/Makefile.in b/unix/Makefile.in
index 3914940..a69df0e 100644
--- a/unix/Makefile.in
+++ b/unix/Makefile.in
@@ -743,7 +743,7 @@ install-binaries: $(TK_LIB_FILE) $(TK_STUB_LIB_FILE) ${WISH_EXE}
 	    fi
 	@echo "Installing $(LIB_FILE) to $(DLL_INSTALL_DIR)/"
 	@@INSTALL_LIB@
-	@chmod 555 "$(DLL_INSTALL_DIR)/$(LIB_FILE)"
+	@chmod 755 "$(DLL_INSTALL_DIR)/$(LIB_FILE)"
 	@if test -f "tk${MAJOR_VERSION}${MINOR_VERSION}.dll"; then \
 	    $(INSTALL_LIBRARY) "tk${MAJOR_VERSION}${MINOR_VERSION}.dll" "$(DLL_INSTALL_DIR)";\
 	    chmod 555 "$(DLL_INSTALL_DIR)/tk${MAJOR_VERSION}${MINOR_VERSION}.dll";\